EXHIBIT 23.1 CONSENT OF BEARD MILLER COMPANY LLP, INDEPENDENT AUDITORS We consent to the incorporation by reference in the Registration Statement (Form S-8 No. 33-71 568) of our report dated December 23, 2003 relating to the financial statements of the Arrow International, Inc. 401(k) Plan included in this Annual Report (Form 11-K) for the year ended August 31, 2003. /s/ BEARD MILLER COMPANY LLP Reading, Pennsylvania February 24, 2004 12